Home / 11,215.72-16,823.65-3,424.53

Finding the Fourth Proportional to 11,215.72, 16,823.65 and 3,424.53

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Solution

The fourth proportional to 11,215.72, 16,823.65 and 3,424.53 is: 5,136.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,215.72 : 16,823.65 = 3,424.53 : x
  2. Step 2: Convert to fraction form
    11,215.72/16,823.65 = 3,424.53/x
  3. Step 3: Cross multiply
    11,215.72x = 16,823.65 × 3,424.53
  4. Step 4: Simplify right side
    11,215.72x = 57,613,094.13
  5. Step 5: Solve for x
    x = 57,613,094.13/11,215.72
  6. Step 6: Final answer
    x = 5,136.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.